1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDECEMBER 28, 20151UL 1551Outline of Investigation for Sprinkler Systems WireIssue Number: 1December 28, 2015Summary of TopicsThis first issue of the Outline of Investigation for Sprinkler Systems
2、 Wire,UL 1551, covers the construction and performance requirements forsprinkler systems wire intended for direct burial service for satellitesolenoid control on golf courses and lawns, terminated to Type UF or USEcable.ULs Outlines of Investigation are copyrighted by UL. Neither a printed norelectr
3、onic copy of an Outline of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of UL.COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTE
4、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDECEMBER 28, 2015UL 15512No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Units of Measurement .43 U
5、ndated References 4CONSTRUCTION4 Conductor 45 Insulation 56 Conductor Assembly 57 Shields 68 Jacket .6PERFORMANCE9 Tests 7MARKINGS10 Cable Markings 811 Tag Marking .912 Date of Manufacture .9DECEMBER 28, 2015 UL 1551 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WIT
6、HOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These cables are rated 300, or 600v, 60C (140F) or 75C (167F). The insulated-conductor sizesare 30V 22 14 AWG, 150 300V 20 8 AWG, 600V 18 2 AWG and single conductor 300V or 600V18 2 AWG solid or stranded copper.1.2 This outline covers the construction an
7、d performance requirements for sprinkler systems wireintended for direct burial service for satellite solenoid control on golf courses and lawns, terminated toType UF or USE cable.1.3 A product that contains features, characteristics, components, materials, or systems new or differentfrom those cove
8、red by the requirements in this Outline of Investigation, and that involves a risk of fire,electric shock, or injury to persons shall be evaluated using the appropriate additional component andend-product requirements to maintain the level of safety as originally anticipated by the intent of thisOut
9、line of Investigation. A product whose features, characteristics, components, materials, or systemsconflict with specific requirements or provisions of this Outline of Investigation does not comply with thisOutline of Investigation Revision of requirements shall be proposed and adopted in conformanc
10、e with themethods employed for development, revision, and implementation of this Outline of Investigation.2 Units of Measurement2.1 Values stated without parentheses are the requirements. Values in parentheses are explanatory orapproximate information.3 Undated References3.1 Any undated reference to
11、 a code or standard appearing in the requirements of this Outline ofInvestigation shall be interpreted as referring to the latest edition of that code or standard.CONSTRUCTION4 Conductor4.1 Anealed solid of stranded copper, bare or coated, in size 22 2 AWG.DECEMBER 28, 2015UL 15514UL COPYRIGHTED MAT
12、ERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5 Insulation5.1 Conductors shall be insulated with LDPE, HDPE, or PVC (compounds for Types TW, THW, orTHWN) using a wet-locations insulating compound rated for at least 60C (167F).5.2 Insulated conductors other th
13、an those described in 5.1 shall have materials in thicknesses describedin Table 5.1 and with temperature ratings appropriate for the specific construction of the sprinkler systemswire in which they are to be used. The materials shall be evaluated for the requested temperature ratingas described in L
14、ong-Term Aging Section of the Reference Standard for Electric Wires, Cables, andFlexible Cords, UL 1581. Investigation of the electrical, mechanical, and physical characteristics of theseinsulated conductors shall show these conductors to be comparable to the conductors described in 5.1.The investig
15、ation shall include tests such as crushing, impact, deformation, heat shock, and cold bend.Table 5.1Minimum thickness of insulationRating AWG SizeMinimum Average Thickness Minimum Thickness at Any Pointmils mm mils mm30V 22 14 15 0.38 13 0.33150 or 300V 20 8 25 0.64 22 0.56600V 18 8 45 1.14 40 1.026
16、 2 60 1.52 54 1.37300 or 600V (singleconductor)18 8 45 1.14 40 1.026 2 60 1.52 54 1.376 Conductor Assembly6.1 Cable may be a single conductor without a jacket or a multiple conductor cable with an overall jacket.Conductors of different sizes may be used in the same cable. The insulated conductors sh
17、all be cabled.The length of lay is not specified. The cables shall be provided with fillers where needed to make thefinished cable round.6.2 The assembly may be enclosed in a nonmetallic braid, tape, or wrap.DECEMBER 28, 2015 UL 1551 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION O
18、RDISTRIBUTION WITHOUT PERMISSION FROM UL7 Shields7.1 A shield is not required but is acceptable over an individual insulated conductor, over a pair ofinsulated conductors, over one or several groups of insulated conductors in any group, or over the entirecable assembly. Several shields may be used i
19、n a given cable.7.2 A shield shall be of metal and shall consist of one or more of the following:a) A laminated shield tape of polymeric material and metal(s) with or without a bare metal-coated or uncoated (uncoated not acceptable with an aluminum-faced tape) copper drain wire incontact with the me
20、tal(s) part of the tape. The tape may be applied with the metal(s) side in orout. The size of a drain wire is not specified. A drain wire may be solid or stranded.b) A corrugated or smooth single-metal or bi-metal tape applied longitudinally, helically, orinterlocked with or without a bare metal-coa
21、ted or uncoated (uncoated not acceptable with analuminum tape) copper drain wire in contact with the metal. The tape may be polymer-coatedon one side if there is a drain wire or on both sides if a drain wire is not used. Any inward-facing coating may bond to the insulation but, where the metal tape
22、is applied over more thanone conductor or member, any inward-facing coating shall not bond to the conductors in thecable. The size of a drain wire is not specified. A drain wire may be solid or stranded.Interlocked aluminum tape shall comply with the requirements for a metal covering but, if thecabl
23、e has an overall cable jacket, the strip thickness and width are not specified.c) A serving, wrap, or braid of aluminum wires or metal-coated or uncoated (uncoated notacceptable in contact with aluminum wires) copper wires.8 Jacket8.1 A jacket of LDPE, HDPE, or PVC (Class 43), and of the thicknesses
24、 specified in Table 8.1, shall beprovided where required.Table 8.1Minimum thicknesses of outer jacketRatingMinimum Average Thickness Minimum Thickness at Any Pointmils mm mils mm30V 25 0.64 20 0.51150 or 300V 25 0.64 20 0.51600V 30 0.76 24 0.61DECEMBER 28, 2015UL 15516UL COPYRIGHTED MATERIAL NOT AUT
25、HORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPERFORMANCE9 Tests9.1 The following test program is to be conducted. Test methods and requirements are to be taken fromthe printed Standard most applicable to the construction involved.a) Detailed examination of the complete c
26、able.b) Physical Properties of Insulation 1) Unaged The insulation on solid or stranded wires 22 2 AWG Type LDPE shallcomply with Table 50.136, HDPE shall comply with Table 50.135, or PVC (compoundsfor Types TW, THW, or THWN) shall comply with Table 50.140 as described in theReference Standard for E
27、lectrical Wires, Cables, and Flexible Cords, UL 1581.2) Aged The insulation on solid or stranded wires 22 2 AWG Type LDPE shallcomply with Table 50.136, HDPE shall comply with Table 50.135, or PVC (compoundsfor Types TW, THW, or THWN) shall comply with Table 50.140 as described in UL1581.c) Physical
28、 Properties of Jacket 1) Unaged The jacket on solid or stranded wires 22 2 AWG Type LDPE shallcomply with Table 50.136, HDPE shall comply with Table 50.135, or PVC (Class 43)shall comply with Table 50.182 as described in UL 1581.2) Aged The jacket on solid or stranded wires 22 2 AWG Type LDPE shall
29、complywith Table 50.136, HDPE shall comply with Table 50.135, or PVC (Class 43) shallcomply with Table 50.182 as described in UL 1581.d) Sunlight Resistance Shall comply with the Xenon-Arc Tests in UL 1581.e) Mechanical Water Absorption The mechanical water absorption (MWA) of the insulation onthe c
30、onductors shall not be more than 25.0 milligrams mass per square inch of exposed surfaceor shall not be more than 3.9 milligrams mass per square centimeter of exposed surface, whenspecimens of the insulated conductors are tested as described in UL 1581.f) Cold-Bend Test Conducted on samples of the s
31、ingle conductor and of the complete cablethat have been in a cold chamber for 4 hours at a temperature of -25.0 2.0C (-13.0 3.6F)using the methods described in the Standard for Thermoplastic-Insulated Wires and Cables, UL83. The complete cable shall be wrapped for 180 degrees around a mandrel whose
32、diameter isfive times the diameter of the finished cable. The single conductor shall be wrapped for sixturns around a mandrel whose diameter is the same as the diameter of the finished singleconductor.g) Crushing Resistance An average of no less than 225 lbf or 1000 N or 102 kgf shall berequired to
33、crush solid 14 AWG Type TW, THW, and THWN wires until contact is establishedbetween the conductor and the earth-grounded flat steel plate or steel rod when ten specimensof the finished wire are subjected to the crushing procedure described in the CrushingResistance Test of UL 1581.DECEMBER 28, 2015
34、UL 1551 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULh) Impact Resistance The insulation and nylon jacket on solid 14 AWG Type TW, THW, andTHWN wires shall keep a free-falling steel weight that impacts the wire or insulated conductorwith a
35、n energy of 2 ft-lbf or 2.7 J or 0.277 kgf-m from exposing the conductor to view orcausing the lamp to light when specimens are subjected to the impact procedure described inthe Impact Resistance Test of UL 1581.MARKINGS10 Cable Markings10.1 The cable shall have the information described below shown
36、 on the outer surface of the wire bymeans of indelible ink printing or indent or raised printing. The ink printing shall be investigated fordurability as specified in the Durability of Indelible-Ink Printing test in the Reference Standard for ElectricalWires, Cables, and Flexible Cords, UL 1581. The
37、 sequence is not specified. A marker tape is appropriatein addition to the surface printing. Other information where added, shall not confuse or mislead and shallnot conflict with these requirements. See 12.1 for date marking.a) Manufacturers and Factory Identification The name of the Manufacturer,
38、the Manufacturerstrade name for the product, or both, or any other appropriate distinctive marking by means ofwhich the organization responsible for the product is readily identifiable. Where the organizationthat is responsible for the product is different from the actual manufacturer, both the resp
39、onsibleorganization and the actual manufacturer shall be identified by name or by appropriate codingsuch as by trade name, trademark, the assigned electrical reference number. The meaning ofany coded identification shall be made available by the organization responsible for the cable. Itis appropria
40、te also to identify a private labeler, the means is not specified.b) AWG size.c) Voltage rating.d) The words “Sprinkler Systems Wire”.e) The optional words “Direct Burial”.f) The optional words “sunlight resistant” for cable with an overall jacket.DECEMBER 28, 2015UL 15518UL COPYRIGHTED MATERIAL NOT
41、 AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL11 Tag Marking11.1 A tag on which the following information is indicated plainly (the sequence of the items is notspecified) shall be tied to every shipping length of cable. However, where the cable is coiled on a reel ori
42、s in a carton, it is appropriate for the tag to be glued, tied, stapled, or otherwise attached to the reel orcarton instead of to the cable or for the tag to be eliminated and the information printed or stencileddirectly onto the reel or carton. Other information, where added, shall not confuse or m
43、islead and shallnot conflict with these requirements. See 12.1 for date marking.a) Manufacturers and Factory Identification The name of the Manufacturer, the Manufacturerstrade name for the product, or both, or any other appropriate distinctive marking by means ofwhich the organization responsible f
44、or the product is readily identifiable. Where the organizationthat is responsible for the product is different from the actual manufacturer, both the responsibleorganization and the actual manufacturer shall be identified by name or by appropriate codingsuch as by trade name, trademark, the assigned
45、 electrical reference number. The meaning ofany coded identification shall be made available by the organization responsible for the cable. Itis appropriate also to identify a private labeler, the means is not specified.b) AWG size.c) Voltage rating.d) The words “Sprinkler Systems Wire”.e) The optio
46、nal words “Direct Burial”f) The optional words “sunlight resistant” for cable with an overall jacket.12 Date of Manufacture12.1 The date of manufacture by month and year (or in the sequence month, day, and year) shall beincluded among the tag, reel or carton markings described in 11.1, or shall be i
47、ncluded among the cablemarkings described in 10.1 where legible on the outer surface of the cable. The date shall be shown inplain language, not in code.DECEMBER 28, 2015 UL 1551 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULDECEMBER 28, 2015UL 155110No Text on This Page
